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sms: implement backspace with pad button A

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This commit is contained in:
Virgil Dupras 2020-05-15 20:32:04 -04:00
parent fdea069544
commit aad713c477
2 changed files with 8 additions and 7 deletions
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13
blk/627
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@ -1,14 +1,15 @@
: _cell! ( tilenum pos )
2 * 0x7800 OR _ctl ( tilenum ) _data 1 _zero ;
: _spc! 0 ( blank ) XYPOS @ _cell! ;
: _lf
XYPOS @ 0 ( blank ) OVER _cell!
[ VDP_COLS LITN ] / 1+ [ VDP_ROWS LITN ] MOD
[ VDP_COLS LITN ] * XYPOS !
;
_spc! XYPOS @ [ VDP_COLS LITN ] / 1+ [ VDP_ROWS LITN ] MOD
[ VDP_COLS LITN ] * XYPOS ! ;
: _bs _spc! XYPOS @ 1-
[ VDP_COLS VDP_ROWS * LITN ] MOD XYPOS ! ;
: (emit)
DUP 0x08 = IF DROP _bs EXIT THEN
DUP 0x0d = IF DROP _lf EXIT THEN
0x20 - DUP 0< IF DROP EXIT THEN
0x5e MIN ( tilenum ) XYPOS @ _cell!
XYPOS @ 1+ DUP [ VDP_COLS VDP_ROWS * LITN ]
= IF DROP 0 THEN XYPOS !
;
= IF DROP 0 THEN XYPOS ! ;

2
blk/636
View File

@ -3,7 +3,7 @@
BEGIN _updsel UNTIL
_prevstat C@
0x20 ( BUTC ) OVER AND NOT IF DROP _sel C@ EXIT THEN
0x40 ( BUTA ) AND NOT IF EXIT THEN
0x40 ( BUTA ) AND NOT IF 0x8 ( BS ) EXIT THEN
( If not BUTC or BUTA, it has to be START )
0xd _next C! _sel C@
;